JP2007185728A - Binding mechanism of binding apparatus and paper-made staple - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a binding apparatus, simplifying operation and obtaining a fine finish. <P>SOLUTION: A cutter part 21 is disposed above a paper sheet table 11, and a lower clamp plate 31 is disposed below it. The portal cutter part includes cutter blades 23, 24 on the right and left. The inside surfaces of the cutter blades are provided with recessed grooves 25, 26 where the leg parts 103, 104 of the paper-made staple 101 are fitted. The paper sheet table is provided with a cutting hole 12 formed corresponding to the cutter part, and when the portal paper-made staple 101 having an adhesive 105 at one end is mounted on the cutter part and the cutter part is lowered, the paper-made staple penetrates the paper sheets with the cutter blades. When a crown part of the paper-made staple 101 is pressed by an upper clamp plate 27 and the cutter part is lifted, the leg parts of the paper-made staple are put inside by the slants of step parts at the lower ends of the recessed grooves, and the lower clamp plate is lifted to press-bond the right and left leg parts of the paper-made staple. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a binding mechanism of a binding device that binds a paper bundle such as a document with a paper staple provided with an adhesive layer, and to a paper staple, and more particularly to a binding mechanism of a binding device with improved operability. is there.

  Conventionally, a stapler has been used as a means for simply binding a bundle of paper. However, when the paper bound with the staples which are metal wires is reused, the mixed staples must be removed. Also, when discarding, it is desirable to separate paper and staples from the viewpoint of environmental protection, but extra time is required for the sorting process.

  As a proposal that does not require such labor, a binding device that binds a paper bundle with a paper adhesive tape instead of a metal staple is known (Patent Documents 1 and 2). This binding device uses a paper adhesive tape roll with release paper, and a slider having a clamp plate for sandwiching paper on a paper table similar to a general desktop stapler, an elevating cutter unit, It has.

  A paper adhesive tape roll is a paper adhesive tape with a predetermined length (the length used for a single binding operation) that is continuously pasted on release paper, and its tip extends from the bottom to the top of the paper table. It stands up and is set so that the adhesive surface faces the end surface of the paper on the paper table.

  When the edge of the paper bundle is sandwiched between the clamp plates of the slider and the slider and the paper bundle are slid forward, the end face of the paper bundle comes into contact with the adhesive surface of the adhesive tape.

  Next, when the cutter part is lowered, the pressing member integrated with the cutter part presses the tip of the adhesive tape against the upper surface of the edge of the paper bundle, and the blade of the cutter part moves from the top to the bottom near the edge of the paper bundle. To penetrate.

  And when the front-end | tip of a blade presses an adhesive tape, the rear part of the adhesive tape for the head of 1 time will peel from a release paper. A square hole is provided in the vicinity of the tip of the blade, and the rear part of the peeled adhesive tape enters the square hole by an elastic restoring force and penetrates the blade back and forth.

  Subsequently, when the manual pressing of the cutter part is released, the cutter part is lifted by the spring, the rear part of the adhesive tape caught on the blade is pulled up together with the blade to the upper surface side of the paper bundle through the paper cutting hole, and the blade is further lifted Then, the rear part of the adhesive tape comes out of the square hole of the blade, and the rear part of the adhesive tape stands up.

Then, when the slider and the paper bundle are moved backward, the rear part of the adhesive tape is rubbed by the roller arranged on the paper table, and the rear part of the adhesive tape is overlapped with the front part of the adhesive tape that is already crimped to the paper bundle. The binding process is completed.
JP-A-8-39959 Japanese Patent Laid-Open No. 10-871

  A conventional binding device using a paper adhesive tape has a sheet clamped by a slider, slides forward, slides down the cutter unit, and then slides the slider and paper backward to perform a one-step binding process. There are many operation steps, and there are points to be improved in operability and quickness.

  In addition, a square hole for hooking the tip of the adhesive tape is formed in the vicinity of the tip of the blade, and it is necessary to increase the thickness of the blade because it is necessary to ensure the strength of the blade. There is a problem that the punched hole becomes large and looks bad.

  Therefore, there is a technical problem to be solved in order to simplify the operation process of the binding mechanism and improve the speed of the binding process and the appearance of the binding state, and the present invention aims to solve the above problem. And

  The present invention is proposed to achieve the above object, and is a binding mechanism of a binding device that binds a bundle of paper with a paper staple that is bent in a gate shape and has an adhesive layer on an inner surface. A pair of downward-facing cutter blades arranged side by side, and a gate-shaped cutter portion in which the paper staple can be loaded between the cutter blades, a paper table having a punch hole through which the cutter portion can enter from above, and the paper table A crimping member that is disposed immediately below the center of the punching hole and relatively rises and falls toward the punching hole, and the upper part of the inner side surface of the pair of downward cutter blades is a thin part, and is made of paper between the thin parts. A cutter is formed by loading and holding staples, and forming a stepped portion between the lower end and the thick portion of the thin portion as an inclined surface and lowering the cutter portion holding the paper staple. After the cutter blade and the paper staple leg penetrate the paper on the paper table, the cutter part is raised so that the inclined surface bends both legs of the paper staple in the approaching direction, The present invention provides a binding mechanism of a binding device that is configured such that the crimping member rises relative to the paper table and folds and crimps both legs of the paper staple.

  Further, the lower end position of the thin wall portion formed on the inner side upper part of the pair of cutter blades is vertically different between one cutter blade and the other cutter blade, and when the cutter portion is raised, The present invention provides a binding mechanism of a binding device in which the left and right leg portions of a paper staple are bent by inclined surfaces.

  Further, a binding device provided with a clamp plate connected to an elevating mechanism between a pair of cutter blades of the cutter unit and configured to press a crown portion of a paper staple by the clamp plate when the cutter unit is raised. A binding mechanism is provided.

  Moreover, the thin part of the inner surface upper part of the said cutter blade provides the binding mechanism of the binding apparatus which is a ditch | groove.

  The thin portion at the upper part of the inner surface of the cutter blade extends over substantially the entire width of the cutter blade, and the lower end portion of the thin portion provides a binding mechanism for the binding device having a reduced right and left width.

  The tape-shaped paper piece of a predetermined length is folded into a gate shape, and is a paper staple provided with an adhesive layer at the lower part of the inner side surface of one leg part. The present invention provides a paper staple used for a binding mechanism of a binding device having a shape.

  The binding mechanism of the binding device according to the present invention passes both legs of the paper gate-shaped staple through the paper, folds both legs inward, and presses both legs from below to crimp them. The slide operation is unnecessary and workability is good.

  In addition, since the operation process of each part is simple and a frame structure similar to that of a conventional stapler can be easily applied, a small and simple binding device can be provided regardless of the type such as an electric type or a manual type.

  Also, unlike the conventional type, there is no need for a hole to hook the tip of the adhesive tape on the side of the blade, so there is no need to increase the blade thickness to ensure the strength of the blade, and it is formed on paper. This eliminates the problem that the perforated hole becomes larger and looks worse.

  Also, by using paper staples that are partially provided with an adhesive layer on the inner surface of one end, the staples themselves do not adhere to the paper, so it is easy to remove the staples when unbinding the stapled paper and the like. Excellent in properties.

  According to the present invention, a binding mechanism of a binding device that binds a bundle of paper with a paper staple that is bent in a gate shape and has an adhesive layer on an inner surface thereof, a pair of downward cutter blades are arranged in parallel, and the cutter blade A paper-shaped cutter part between which the paper staples can be loaded, a paper table provided with a punching hole through which the cutter part can enter from above, and a paper table disposed immediately below the center of the punching hole of the paper table. The upper and lower portions of the pair of downward cutter blades are formed as thin portions, and the paper staples are loaded and held between the thin portions, The step portion between the lower end of the thin portion and the thick portion is an inclined surface. Thus, when the cutter unit holding the paper staple is lowered, the cutter blade of the cutter unit and the leg of the paper staple penetrate the paper on the paper table, and when the cutter unit is raised, the inclined surface is the paper. Bending both legs of the staples in the approaching direction and raising the pressure-bonding member relative to the paper table, the legs of the paper staples are folded and crimped, and the operation mechanism of the binding mechanism The purpose of improving the speed of the binding process and the appearance of the binding state is achieved.

  FIG. 1 shows the configuration of the binding mechanism of the binding device. Reference numeral 101 denotes a paper binding member bent in advance in a gate shape. This paper binding member is hereinafter referred to as a paper staple. The paper staple 101 includes a pair of legs 103 and 104 that extend downward from the left and right ends of a horizontal crown portion 102, and an adhesive 105 is applied to the inner surface of one leg 103 (left side in the figure). Then, the right leg 104 is folded inward, and then the left leg 103 is folded inward so that the left and right legs 103, 104 are bonded.

  Reference numeral 11 denotes a paper table for receiving paper. A rectangular punching hole 12 through which the cutter portion 21 penetrates from above is formed in the center of the paper table 11, and the cutter portion 21 is positioned above the hole. The cutter unit 21 is a gate-shaped member in which cutter blades 23, 24 are attached to both ends of a horizontally long bar 22. The lower ends of the cutter blades 23, 24 are V-shaped, and the left and right cutter blades 23, 24 The inner surface spacing is slightly narrower than the lateral width of the paper staple 101, and the front and rear widths of the cutter blades 23 and 24 are slightly wider than the front and rear width of the paper staple 101.

  Rectangular concave grooves 25 and 26 corresponding to the side dimensions of the paper staple 101 are formed on the mutually opposing surfaces of the left and right cutter blades 23 and 24, and the paper staple 101 is placed inside the cutter unit 21. When inserted, the legs 103, 104 of the paper staple 101 are fitted and held in the left and right concave grooves 25, 26.

  The lower end positions of the left and right concave grooves 25 and 26 are not the same, and the vertical length of the concave groove 26 of one right cutter blade 24 is substantially equal to the length of the right leg 104 of the paper staple 101, but the other left cutter The concave groove 25 of the blade 23 is longer than the concave groove 26 on the right side, and the lower end position is low. Further, in both cases, the lower end is an inclined surface whose back is raised from the facing surface side. As will be described later in the description of the operation, when the cutter unit 21 penetrating the paper is raised, the paper staple legs 103 and 104 are moved inward and the right leg 104 is moved to the left. This is to delay the timing of bringing the leg portion 103 close.

  An upper clamp plate 27 is disposed on the lower surface of the horizontal bar 22 of the cutter unit 21, and a guide shaft 27a provided at the center of the upper surface of the upper clamp plate 27 protrudes upward through a hole formed in the center of the bar 22. The cutter blades 23 and 24 and the bar 22 and the upper clamp plate 27 can be lowered and raised separately.

  A lower clamp plate 31 for crimping the leg portions 103 and 104 of the paper staple 101 is disposed immediately below the punching hole 12 of the paper table 11, and the leg portions 103 and 104 of the paper staple 101 hold the paper. After penetrating, it rises from the standby position in FIG. 1, and the leg portions 103 and 104 are folded and crimped.

  Next, the operation of the binding mechanism will be described. FIG. 2-1 shows an initial stage of the binding process, in which the paper staple 101 is set inside the cutter unit 21, and the leg portions 103 and 104 of the paper staple 101 are connected to the left and right cutter blades 23 and 24. A paper P to be bound and held in the concave grooves 25 and 26 is set on the paper table 11.

  FIG. 2-2 shows a state in which the cutter unit 21 and the upper clamp plate 27 are integrally lowered, and the cutter blades 23 and 24 pass through the paper P and protrude downward from the punching hole 12 of the paper table 11. Since the leg portions 103 and 104 of the paper staple 101 are in the concave grooves 25 and 26 of the cutter blade 23, the leg portions 103 and 104 penetrate the linear cut end together with the cutter blade 23 without buckling. When the cutter unit 21 is lowered to the lower end, the upper clamp plate 27 pushes the crown portion 102 of the paper staple 101 onto the surface of the paper P.

  Then, as shown in FIG. 2-3, while the upper clamp plate 27 is stopped at the lowered position, the cutter blades 23 and 24 start to rise, whereby first, the right leg 104 of the paper staple 101 is The right cutter blade 24 is pushed inward by the inclined surface at the lower end of the concave groove 26 and bent inward. Subsequently, as described above, the left leg 103 is pushed by the lower inclined surface of the concave groove 25 of the left cutter blade 23 behind the right leg 104 due to the difference in the lower end positions of the left and right concave grooves 25, 26. As shown in FIG. 2-4, the left leg 103 is folded over the surface of the right leg 104.

  Then, as shown in FIG. 2-5, the cutter blades 23 and 24 are pulled out from the paper P, and the lower clamp plate 31 is raised so that the left and right leg portions 103 and 104 are folded from below to the lower surface of the paper P. Press to. As a result, the adhesive layer 105 on the inner side surface of the left leg 103 is attached to the right leg 104, and the paper staple 101 becomes a flatly crushed loop, and a bundle of sheets P is bound.

  Thereafter, the upper clamp plate 27 is raised to release the paper P, and the lower clamp plate 31 is lowered to the standby position to return to the initial position, and one cycle of the binding process is completed.

  The paper staple 101 is glued with the ends of both legs 103 and 104 overlapped, and is not attached to the paper P. If it is necessary to release the paper P once bound, the paper staple 101 can be broken. The paper P can be easily unwound, and unlike the conventional configuration in which an adhesive tape is attached to the paper, there is no possibility that the paper P will be torn or torn.

  In the above embodiment, the paper table 11 is fixed and the lower clamp plate 31 is lifted. However, the lower clamp plate 31 is fixed and the paper table 11 can be lifted and lowered integrally within a certain range. It is good also as a structure. That is, the position at which the cutter blades 23 and 24 and the upper clamp plate 27 in FIG. 2-2 stop descending is defined as the lower limit of the cutter blades 23 and 24, and the upper clamp plate 27 can be further lowered from the state of FIG. When the upper clamp plate 27 is further pushed down, the paper table 11 is pushed and lowered by the upper clamp plate 27, so that the cutter blades 23 and 24 are lowered and stopped as in FIG. The upper clamp plate 27 and the paper table 11 are lowered, and the leg portions 103 and 104 of the paper staple 101 are moved inward, and the lower clamp plate 31 is moved to the leg portions 103 and 104 as in FIGS. Bend and crimp.

  As described above, since the binding process is performed by the raising and lowering operations of the cutter blades 23 and 24 and the upper clamp plate 27, the cutter blade 23 is utilized by using an interlocking mechanism such as a link or a cam as in a general stapler. , 24 and the upper clamp plate 27 can be configured to complete a single binding process, and a binding device with good operability can be provided.

  In the first embodiment, the leg portions 103 and 104 of the paper staple 101 are brought close to each other by utilizing the step between the inner surfaces of the cutter blades 23 and 24 and the concave grooves 25 and 26. An example will be described. FIG. 3 shows the configuration of the binding mechanism. Here, a clincher portion comprising a lower clamp plate 42 similar to the lower clamp plate 31 of FIG. 1 and clinchers 43 and 44 provided on the left and right sides below the paper table. 41 are arranged.

  The left clincher 43 and the right clincher 44 can slide up and down along the side surface of the lower clamp plate 42, and are urged upward by a compression spring 45 interposed between the spring receiving portion 42a at the lower portion of the lower clamp plate 42, respectively. Has been.

  The left and right clinchers 43 and 44 fold the left and right legs 103 and 104 of the paper staple 101, and the height of the left clincher 43 is lower than that of the right clincher 44. The left clincher 43 is formed so as to be in contact with the left leg portion 103 of the paper staple 101 after the contact with the right leg portion 104 of the paper staple 101. That is, by shifting the timing of bending the left and right legs 103 and 104 of the paper staple 101 as in the first embodiment, the right leg 104 is bent and then the left leg 103 with the adhesive 105 is bent. The left leg 103 is crimped to the surface of the right leg 104. Therefore, in this example, it is not necessary to make the lower end positions of the concave grooves 25, 26 of the cutter blades 23, 24 different, and the lower end positions of the left and right concave grooves 25, 26 are the same.

  Next, the operation of the binding mechanism in FIG. 3 will be described. FIG. 4-1 shows an initial stage of the binding process, in which the paper staple 101 is set inside the cutter unit 21, and the paper P to be bound is set on the paper table 11.

  FIG. 4-2 shows a state in which the cutter unit 21 is lowered and the cutter blades 23 and 24 pass through the paper P and protrude downward from the punch hole 12 of the paper table 11. Since the leg portions 103 and 104 of the paper staple 101 are in the concave grooves 25 and 26 of the cutter blades 23 and 24, the leg portions 103 and 104 penetrate the cut end together with the cutter blade 23 without buckling. When the cutter unit 21 is lowered to the lower end, the upper clamp plate 27 pushes the crown portion 102 of the paper staple 101 onto the surface of the paper P.

  And, as shown in FIG. 4-3, the cutter unit 21 starts to rise, or the upper clamp plate 27 and the paper table 11 start to descend, whereby the left and right leg portions 103, 104 of the paper staple 101 are first The cutter blades 23 and 24 are pressed slightly by the inclined surfaces at the lower ends of the concave grooves 25 and 26 and bent slightly inward.

  Subsequently, as shown in FIG. 4-4, the cutter unit 21 is pulled out from the paper, and the clincher unit 41 is relatively lifted so that the higher right clincher 44 is moved to the right of the paper staple 101 first. The leg 104 is pushed up, the right leg is folded by about 90 degrees and pressed against the back side of the paper P. Then, the central lower clamp plate 42 rises while compressing the right compression spring 45, and the left clincher 43 pushes up the left leg 103 of the paper staple 101 behind the right clincher 44, as shown in FIG. 4-5. The left leg 103 is folded, and the left leg 103 is folded on the surface of the right leg 104.

  Even after the left clincher 43 hits the back surface of the paper table 11 via the paper staple 101 and stops rising, the lower clamp plate 42 further rises, and as shown in FIG. 4-6, the folded right leg 104 and the left The leg 103 is squeezed. As a result, the adhesive layer 105 on the inner side surface of the left leg 103 is attached to the right leg 104, and the paper staple 101 becomes a flatly crushed loop, and a bundle of sheets P is bound.

  Thereafter, the upper clamp plate 27 and the paper table 11 are raised to release the paper P, all the movable parts are returned to the initial positions, and one cycle of the binding process is completed.

  The first and second embodiments are configured to hold the paper staple 101 by fitting the leg portions 103 and 104 of the paper staple 101 into the concave grooves 25 and 26 formed on the inner surfaces of the cutter blades 23 and 24, respectively. The cutter blades 23 and 24 are wider than the legs 103 and 104 of the staple 101. Therefore, the width (length in the longitudinal direction) of the blade through-hole formed in the paper by the cutter blades 23 and 24 is wider than the width of the legs 103 and 104 of the paper staple 101. Although the difference between the width of the through hole and the width of the legs 103 and 104 is not large, the smaller the difference, the better the appearance. In this embodiment, the width of the through hole and the width of the paper staple are matched.

  As shown in FIG. 5, the lower half portions of the leg portions 113 and 114 of the paper staple 111 are narrower than the width of the upper half portion and the crown portion 112. The widths of the cutter blades 53 and 54 of the cutter unit 51 are the same as the entire width of the paper staple 111, and the inner side surfaces of the cutter blades 53 and 54 correspond to the side surface shapes of the leg portions 113 and 114 of the paper staple 111. When the paper staple 111 is loaded between the cutter blades 53 and 54 of the cutter portion 51, the leg portions 113 and 114 of the paper staple 111 are fitted into the recess. Retained.

  The level difference between the concave portions 55 and 56 and the thick portion below is an inclined surface. When the paper staple 111 penetrating the paper is pressed by the upper clamp plate 57 and the cutter unit 51 is raised, the inclined surface Thus, the leg portions 113 and 114 of the paper staple 111 are moved inward.

  Since the operation of this binding mechanism is the same as in FIGS. 4-1 to 4-6 (Example 2), the description thereof will be omitted, but the width of the paper staple 111 is equal to the width of the cutter blades 53 and 54. The width of the through hole of the blade formed in the paper by the cutter blades 23 and 24 and the width of the paper staple 111 are the same, and the appearance of the binding portion is good.

  The present invention is not limited to the above-described embodiment, and various modifications are possible within the technical scope of the present invention, and it is natural that the present invention extends to those modifications. For example, when an adhesive layer is provided on the inner surface of the crown portions 102, 112 of the paper staples 101, 111, and the cutter portions 21, 51 are lowered, the crown portions 102, The crown portions 102 and 112 may be attached to the paper P by pressing the 112 against the surface of the paper P. In this case, the cutter parts 21 and 51 having a simple configuration in which the upper clamp plates 27 and 57 are eliminated can be obtained.

FIG. 2 is a configuration explanatory diagram of a binding mechanism according to the first embodiment. FIG. 3 is a process explanatory diagram of the binding mechanism according to the first embodiment. FIG. 3 is a process explanatory diagram of the binding mechanism according to the first embodiment. FIG. 3 is a process explanatory diagram of the binding mechanism according to the first embodiment. FIG. 3 is a process explanatory diagram of the binding mechanism according to the first embodiment. FIG. 3 is a process explanatory diagram of the binding mechanism according to the first embodiment. FIG. 4 is a configuration explanatory diagram of a binding mechanism according to a second embodiment. Process explanatory drawing of the binding mechanism of Example 2. FIG. Process explanatory drawing of the binding mechanism of Example 2. FIG. Process explanatory drawing of the binding mechanism of Example 2. FIG. Process explanatory drawing of the binding mechanism of Example 2. FIG. Process explanatory drawing of the binding mechanism of Example 2. FIG. Process explanatory drawing of the binding mechanism of Example 2. FIG. FIG. 5 is a configuration explanatory diagram of a binding mechanism according to a third embodiment.

Explanation of symbols

11 Paper table
12 Hole
21 Cutter section
22 bar
23 Cutter blade
24 Cutter blade
25 recess
26 Recess
27 Upper clamp plate
31 Lower clamp plate
41 Clincher
42 Lower clamp plate
43 Left clincher
44 Right clincher
45 Compression coil spring
51 Cutter section
52 bar
53 Cutter blade
54 Cutter blade
55 recess
56 Recess
57 Upper clamp plate
101 Paper staples
102 Crown
103 Left leg
104 Right leg
105 Adhesive
111 Paper staples
112 Crown
113 Left leg
114 Right leg
115 Adhesive
P paper

Claims (6)

A binding mechanism of a binding device that is folded into a gate shape and binds a paper bundle with a paper staple having an adhesive layer on an inner surface thereof,
A pair of downward-facing cutter blades arranged side by side, a gate-shaped cutter portion that can be loaded with the paper staples between the cutter blades, a paper table having a punch hole through which the cutter portion can enter from above, and a removal of the paper table A crimping member that is disposed immediately below the center of the hole and relatively rises and falls toward the punching hole, and the upper part of the inner side surface of the pair of downward cutter blades is a thin part, and a paper staple is placed between the thin parts. It is formed so as to be loaded and held, and a stepped portion between the lower end and the thick portion of the thin portion is formed as an inclined surface, and the cutter portion holding the paper staple is lowered to lower the cutter blade of the cutter portion and the paper After the leg portion of the staple is penetrated through the paper on the paper table, the inclined surface is bent in the approaching direction by raising the cutter portion. Te asked, the crimping member is relatively raised with respect to the paper table, binding mechanism construction the binding device to crimp fold the legs of the paper staple.   The lower end position of the thin portion formed on the upper inner side surface of the pair of cutter blades is vertically different between one cutter blade and the other cutter blade, and when the cutter portion is raised, the inclined surface of the step portion The binding mechanism of the binding device according to claim 1, wherein the left and right legs of the paper staple are bent at different timings.   The clamp plate connected to the raising / lowering mechanism is provided between a pair of cutter blades of the cutter portion, and the crown portion of the paper staple is pressed by the clamp plate when the cutter portion is raised. A binding mechanism of the binding device.   The binding mechanism of the binding device according to claim 1, wherein the thin-walled portion on the inner side surface of the cutter blade is a concave groove.   2. A binding mechanism for a binding device according to claim 1, wherein the thin portion at the upper part of the inner side surface of the cutter blade extends over substantially the entire width of the cutter blade, and the lower end portion of the thin portion has a reduced left-right width. A paper-made staple with a tape-shaped piece of paper of a predetermined length folded into a gate shape and an adhesive layer provided on the lower part of the inner surface of one leg, with the lower end of both legs having a reduced left and right width A paper staple used for a binding mechanism of a binding device according to claim 5.

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